Investment casting gating for metal wood golf club heads

• US 5,538,798 A
• Filed: 04/12/1995
• Issued: 07/23/1996
• Est. Priority Date: 04/12/1995
• Status: Expired due to Fees

• Current Assignee: Niemin Porter & Company
• Original Assignee: Niemin Porter & Company
• Inventors: Sheehan, John P.
• Primary Examiner(s): ZIMMERMAN, JOHN J
• Application Number:
  US08/420,659
• Time in Patent Office: 468 Days
• Field of Search: 428/577, 428/582, 428/583, 428/586, 273/167 H, 273/167 R, 273/173
• US Class Current: 428/577
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: Y10T 428/12229 Intermediate article [e.g., blank, etc.]

Abstract

Apparatus and directed to improved gating for the investment casting of metal wood golf club heads.

Claims

1. A metal body for use in connection with investment casting of a metal wood golf club head comprising:

a) a body having a hollow interior accessible through an orifice and a weld rim surrounding said orifice; and

b) gating means comprising at least one gate disposed on said weld rim.

2. The metal body of claim 1 wherein said gating means comprises four gates.

3. A metal body for use in connection with investment casting of a metal wood golf club head comprising:

a) a body comprising a face, a toe, a heel, and a ribbon, and having a hollow interior accessible through an orifice disposed adjacent to said toe, heel, crown, and ribbon, and a weld rim surrounding said orifice; and

b) first, second, third and fourth gates disposed on said weld rim, wherein said first gate is adjacent to said face, said second gate is adjacent to said toe, said third gate is adjacent to said heel, and said fourth gate is adjacent to said ribbon.